improve RA/Dec labels to make publication-quality figs

Author: keflavich

tutorials/position-velocity-diagrams/PVDiagramPlotting.ipynb

@@ -5,7 +5,7 @@
    "id": "ec28e7e2",
    "metadata": {},
    "source": [
-    "fig.savefig(\"saved_pvdiagram.png\", bbox_inches='tight')fig.savefig(\"saved_pvdiagram.png\", bbox_inches='tight')fig.savefig(\"saved_pvdiagram.png\", bbox_inches='tight')fig.savefig(\"saved_pvdiagram.png\", bbox_inches='tight')fig.savefig(\"saved_pvdiagram.png\", bbox_inches='tight')fig.savefig(\"saved_pvdiagram.png\", bbox_inches='tight')fig.savefig(\"saved_pvdiagram.png\", bbox_inches='tight')fig.savefig(\"saved_pvdiagram.png\", bbox_inches='tight')# Extracting and Plotting Position-Velocity Diagrams\n",
+    "# Extracting and Plotting Position-Velocity Diagrams\n",
     "\n",
     "## Authors\n",
     "Adam Ginsburg, Eric Koch\n",
@@ -132,7 +132,9 @@
    "source": [
     "ax = pl.subplot(111, projection=cube.wcs.celestial)\n",
     "ax.imshow(cube[25].value)\n",
-    "path.show_on_axis(ax, spacing=1, color='r')"
+    "path.show_on_axis(ax, spacing=1, color='r')\n",
+    "ax.set_xlabel(f\"Right Ascension [{cube.wcs.wcs.radesys}]\")\n",
+    "ax.set_ylabel(f\"Declination [{cube.wcs.wcs.radesys}]\")"
    ]
   },
   {
@@ -251,6 +253,8 @@
     "path.show_on_axis(ax, spacing=1, color='r')\n",
     "\n",
     "ww = wcs.WCS(pvdiagram.header)\n",
+    "ax.set_xlabel(f\"Right Ascension [{cube.wcs.wcs.radesys}]\")\n",
+    "ax.set_ylabel(f\"Declination [{cube.wcs.wcs.radesys}]\")\n",
     "\n",
     "ax = pl.subplot(122, projection=ww)\n",
     "im = ax.imshow(pvdiagram.data)\n",
@@ -317,7 +321,9 @@
    "source": [
     "ax = pl.subplot(111, projection=cube.wcs.celestial)\n",
     "ax.imshow(cube[25].value)\n",
-    "skypath.show_on_axis(ax, spacing=1, color='r')"
+    "skypath.show_on_axis(ax, spacing=1, color='r')\n",
+    "ax.set_xlabel(f\"Right Ascension [{cube.wcs.wcs.radesys}]\")\n",
+    "ax.set_ylabel(f\"Declination [{cube.wcs.wcs.radesys}]\")"
    ]
   },
   {
@@ -344,6 +350,8 @@
     "skypath.show_on_axis(ax, spacing=1, color='r')\n",
     "\n",
     "ww = wcs.WCS(pvdiagram2.header)\n",
+    "ax.set_xlabel(f\"Right Ascension [{cube.wcs.wcs.radesys}]\")\n",
+    "ax.set_ylabel(f\"Declination [{cube.wcs.wcs.radesys}]\")\n",
     "\n",
     "ax = pl.subplot(122, projection=ww)\n",
     "im = ax.imshow(pvdiagram2.data)\n",
@@ -378,6 +386,9 @@
     "skypath.show_on_axis(ax, spacing=1, color='r')\n",
     "\n",
     "ww = wcs.WCS(pvdiagram2.header)\n",
+    "ax.set_xlabel(f\"Right Ascension [{cube.wcs.wcs.radesys}]\")\n",
+    "ax.set_ylabel(f\"Declination [{cube.wcs.wcs.radesys}]\")\n",
+    "\n",
     "\n",
     "ax = pl.subplot(122, projection=ww)\n",
     "im = ax.imshow(pvdiagram2.data)\n",
@@ -452,6 +463,8 @@
     "                      linewidth=0.75)\n",
     "\n",
     "ww = wcs.WCS(pvdiagram3.header)\n",
+    "ax.set_xlabel(f\"Right Ascension [{cube.wcs.wcs.radesys}]\")\n",
+    "ax.set_ylabel(f\"Declination [{cube.wcs.wcs.radesys}]\")\n",
     "\n",
     "ax = pl.subplot(122, projection=ww)\n",
     "im = ax.imshow(pvdiagram3.data)\n",
@@ -465,6 +478,7 @@
     "ax1 = ax.coords[1]\n",
     "ax1.set_format_unit(u.km/u.s)\n",
     "\n",
+    "\n",
     "ax.set_ylabel(\"Velocity [km/s]\")\n",
     "ax.set_xlabel(\"Offset [arcmin]\")"
    ]
@@ -488,14 +502,16 @@
    "source": [
     "pvdiagram4 = extract_pv_slice(cube=cube, path=skypath2, spacing=5)\n",
     "\n",
-    "pl.figure(figsize=(12,6))\n",
+    "fig = pl.figure(figsize=(12,6))\n",
     "ax = pl.subplot(121, projection=cube.wcs.celestial)\n",
     "ax.imshow(mx)\n",
     "skypath2.show_on_axis(ax, spacing=5,\n",
     "                      edgecolor='w', linestyle=':',\n",
     "                      linewidth=0.75)\n",
     "\n",
     "ww = wcs.WCS(pvdiagram4.header)\n",
+    "ax.set_xlabel(f\"Right Ascension [{cube.wcs.wcs.radesys}]\")\n",
+    "ax.set_ylabel(f\"Declination [{cube.wcs.wcs.radesys}]\")\n",
     "\n",
     "ax = pl.subplot(122, projection=ww)\n",
     "im = ax.imshow(pvdiagram4.data)\n",
@@ -554,9 +570,9 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3",
+   "display_name": "Python 3.9",
    "language": "python",
-   "name": "python3"
+   "name": "py39"
   },
   "language_info": {
    "codemirror_mode": {
@@ -568,7 +584,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.7.3"
+   "version": "3.9.6"
   }
  },
  "nbformat": 4,